autossh: return from instance function, not exit the script

In case of disabled configuration instances in the bottom of
configuration file, enabled instances won't be started as the first
disabled instance would return in init script termination.

Signed-off-by: ValdikSS ValdikSS <iam@valdikss.org.ru>

net/autossh/files/autossh.init

@@ -14,7 +14,7 @@ start_instance() {
 	config_get poll "$section" 'poll'
 	config_get_bool enabled "$section" 'enabled' '1'
 
-	[ "$enabled" = 1 ] || exit 0
+	[ "$enabled" = 1 ] || return 1
 
 	procd_open_instance
 	procd_set_param command /usr/sbin/autossh -M ${monitorport:-20000} ${ssh}